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公开(公告)号：US20240295305A1
公开(公告)日：2024-09-05
申请号：US18648114
申请日：2024-04-26
Applicant: Japan Display Inc.
Inventor： Masashi TAKAHATA , Takeo KOITO , Hiroyuki WAKANA
IPC: F21V9/40 , F21V23/04 , F21Y113/00 , H05B47/13
CPC classification number: F21V9/40 , F21V23/0471 , H05B47/13 , F21Y2113/30
Abstract: According to an aspect, an illumination device includes: a light distribution controller having a light distribution control region in which a transmission region of light is changeable; a plurality of types of light sources each disposed at a position facing the light distribution controller; and a controller configured to control operation of the light distribution controller and the plurality of types of light sources. The light distribution controller includes a plurality of liquid crystal panels stacked in a facing direction of the light distribution controller and the light source.
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公开(公告)号：US12080250B2
公开(公告)日：2024-09-03
申请号：US17980672
申请日：2022-11-04
Applicant: Japan Display Inc.
Inventor： Gen Koide
IPC: G09G3/34
CPC classification number: G09G3/34 , G09G2300/0823 , G09G2310/0294 , G09G2310/08 , G09G2330/021 , G09G2330/08
Abstract: A display device has a write period of charging a holding capacitor included in each of pixels arranged in a first direction and a second direction different from the first direction in a display region, and has a hold period of holding capacitance of the holding capacitor charged during the write period. The display device comprises a potential maintenance circuit configured to maintain, during the hold period, one of three potential values of a positive-polarity potential, a ground (GND) potential, and a negative-polarity potential having charged the holding capacitor during the write period.
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公开(公告)号：US12080206B2
公开(公告)日：2024-09-03
申请号：US17700631
申请日：2022-03-22
Applicant: Japan Display Inc.
Inventor： Akihiro Ogawa
CPC classification number: G09G3/006 , H01L27/156 , H01L33/38 , H01L33/62
Abstract: A method for repairing a display device, the display device comprising: a plurality of inorganic light emitters arrayed in a matrix (row-column configuration); and a counter electrode provided in a traveling direction of light emitted from the inorganic light emitters and coupled to the inorganic light emitters, the method comprising steps of: detecting a defective inorganic light emitter serving as one of the inorganic light emitters and having a defect; and removing a target portion of the counter electrode by irradiating the target portion with light while leaving the defective inorganic light emitter unremoved, the target portion including a portion between a portion coupled to the defective inorganic light emitter and a portion coupled to an inorganic light emitter adjacently disposed with the defective inorganic light emitter.
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公开(公告)号：US12078891B2
公开(公告)日：2024-09-03
申请号：US18367116
申请日：2023-09-12
Applicant: JAPAN DISPLAY INC.
Inventor： Kojiro Ikeda , Takeo Koito , Koichi Nagao , Shinichiro Tanaka
IPC: G02F1/1337 , G02F1/1343 , G02F1/1347
CPC classification number: G02F1/1337 , G02F1/134309 , G02F1/1347 , G02F2201/124
Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first strip electrode, a second strip electrode, a third strip electrode and a fourth strip electrode. The extension direction of each of the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of each of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of each of the first strip electrode and the second strip electrode is orthogonal to the extension direction of each of the third strip electrode and the fourth strip electrode.
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公开(公告)号：US12078557B2
公开(公告)日：2024-09-03
申请号：US17572753
申请日：2022-01-11
Applicant: Japan Display Inc.
Inventor： Hitoshi Tanaka
CPC classification number: G01L1/146 , G06F3/0414 , G06F3/0445 , G06F2203/04105
Abstract: According to an aspect, a force sensor includes: a plurality of first electrodes that are arranged along a substrate; an elastic body that is in contact with the first electrodes; a second electrode that is in contact with the elastic body, the elastic body being interposed between the second electrode and the first electrodes; and a third electrode that is provided on the substrate side of the second electrode and configured to be electrically coupled to the second electrode. The elastic body includes a conductive particle that electrically couples the first electrodes and the second electrode when force is applied that causes the first electrodes and the second electrode to be approached. The third electrode has a continuous lattice shape that separates at least the first electrodes adjacent in one direction from each other.
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Patent Agency Ranking
公开(公告)号：US20240290861A1
公开(公告)日：2024-08-29
申请号：US18435094
申请日：2024-02-07
Applicant: Japan Display Inc.
Inventor： Hajime WATAKABE , Masashi TSUBUKU , Toshinari SASAKI , Takaya TAMARU , Marina MOCHIZUKI , Ryo ONODERA , Masahiro WATABE
IPC: H01L29/49 , H01L29/66 , H01L29/786
CPC classification number: H01L29/4908 , H01L29/66969 , H01L29/78648 , H01L29/7869
Abstract: A semiconductor device according to an embodiment includes: a first gate electrode; a first insulating layer on the first gate electrode; an oxide semiconductor layer on the first insulating layer; a second insulating layer on the oxide semiconductor layer; and a second gate electrode on the second insulating layer. The first insulating layer includes a first layer including silicon and nitrogen, a second layer including silicon and oxygen, and a third layer including aluminum and oxygen. A thickness of the first layer is 10 nm or more and 190 nm or less. A thickness of the second layer is 10 nm or more and 100 nm or less. A total thickness of the first layer and the second layer is 200 nm or less. A thickness of the third layer 1 nm or more and 10 nm or less.
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公开(公告)号：US20240290134A1
公开(公告)日：2024-08-29
申请号：US18659213
申请日：2024-05-09
Applicant: Japan Display Inc.
Inventor： Shigesumi ARAKI , Kazuki MATSUNAGA , Akio TAKIMOTO
IPC: G06V40/13 , H01L27/146
CPC classification number: G06V40/1318 , H01L27/14625 , H01L27/14678
Abstract: According to an aspect, a detection device includes: a photosensor including light-receiving elements; a front light including a light guide plate and a light source configured to emit light to a first side surface of the light guide plate; and an optical filter layer provided between the light-receiving elements and the front light. The optical filter layer includes light guide paths and a light-blocking portion. A first opening of each light guide path closest to the light-receiving elements is offset in a direction more away from the light source than a second opening of the light guide path farthest from the light-receiving elements. The light guide plate includes a scattering portion on the optical filter layer side. A first peak of an intensity of first light emitted from the detection surface of the light guide plate is observed to be tilted toward a side opposite to the first side surface.
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公开(公告)号：US20240288961A1
公开(公告)日：2024-08-29
申请号：US18656751
申请日：2024-05-07
Applicant: Japan Display Inc.
Inventor： Makoto HAYASHI
CPC classification number: G06F3/0412 , G06F3/04166 , G06F3/0446
Abstract: A display device is provided and includes a touch sensor with electrodes configured to operate in a touch detection period and in a display period; and pixels with pixel electrodes, wherein at least one of the electrodes has thin line portions and protruding electrode portions, the thin line and protruding electrode portions are arranged alternately in a first direction, the thin line portions have a first width in a second direction intersecting the first direction, the protruding electrode portions have a second width in the second direction, and the first width is smaller than the second width.
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公开(公告)号：US20240288303A1
公开(公告)日：2024-08-29
申请号：US18659181
申请日：2024-05-09
Applicant: Japan Display Inc.
Inventor： Kazuki MATSUNAGA , Akio TAKIMOTO , Shigesumi ARAKI
CPC classification number: G01J1/0407 , G01J1/42
Abstract: According to an aspect, a detection device includes: a plurality of photodiodes arranged on a substrate; a front light including a light guide plate disposed so as to overlap the photodiodes and a light source configured to emit light to a side surface of the light guide plate; and an optical filter layer provided between the photodiodes and the light guide plate of the front light. The optical filter layer includes a plurality of light guide paths that at least partially overlap the photodiodes, and a light-blocking portion having higher absorptance of the light than the light guide paths. The detection device includes a reflective layer that is provided between the light guide plate and the optical filter layer and overlaps the light-blocking portion of the optical filter layer.
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170.发明授权公开(公告)号：US12074382B2
公开(公告)日：2024-08-27
申请号：US17388573
申请日：2021-07-29
Applicant: Japan Display Inc.
Inventor： Mitsutaka Okita
CPC classification number: H01Q3/36 , H01Q19/10 , H01Q21/065
Abstract: According to one embodiment, a method of driving a phased array antenna, includes applying voltages to phase control electrodes in a first period such that radio waves to be emitted from antennas are in a same phase in a first emission direction, and applying the voltages to the phase control electrodes in a second period such that the radio waves to be emitted from the antennas are held in the same phase in the first emission direction. An absolute value of the voltage applied in the second period is different from an absolute value of the voltage applied in the first period, in each of the phase control electrodes.
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